How to prevent pump cavitation
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How to prevent cavitation when the pump is running?
Install a vacuum pressure sensor in front of the pump to interlock with it and shut it down automatically when the inlet pressure falls below the set value. Alternatively, manually observe the pressure gauge in front of the pump; if it falls below the set value, stop the machine manually. Or modify the system to eliminate factors that could cause the pump suction pressure to drop to the set point. Or replace it with a pump with a lower flow rate.
A level detector can be installed on the equipment upstream of the pump, and it can be linked to the start and stop of the pump.
Install a low liquid level alarm display or an interlock device.
Generally, once the liquid level interlock value drops below 15%, the shut-off valve of the storage tank closes automatically and the pump stops operating.
Ours has a level gauge and pump interlock; the lowest level is reached when the liquid level drops to the point where the pump head is about to be exposed. It can be checked manually, and it’s easy for the tank to become empty as air gets in. Well, it can be simpler too; using a float switch would work as well